Kettlebells Make a Good Braking System

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The main functions of the core are stabilization, rotation/anti-rotation, and anti-extension. Anti-extension is often the most overlooked of the three categories. In fact, I’d even argue that most coaches overlook all three and focus on flexion for their core training. To those coaches, I suggest reading McGill. But that’s a different topic for a different time…

Anti-extension is important because if I go up to grab a pass in football, it is my core that must be the braking system and keep my body from extending back into a pretzel. The ab wheel is one of the few infomercial items that actually work in this regard. It trains pure anti-extension. However, although I love my ab wheel, it doesn’t train the core in a dynamic enough matter for many athletes and many athletes are too weak to perform it.

As an aside, I have my honeymoon coming up next week (getting married this week), and as such, I’m in the process of cutting off some of my body fat. Part of my training today consisted of heavy kettlebell swings. I’m not sure if I would have noticed this at any other point doing kettlebell swings, but I’m recovering from two herniated discs in the lumbar region of my back, so I’ve been more aware. To be safe, after extending my hips during the swing, I was contracting my abdominals hard at the top to make sure I wasn’t thrown into hyper extension by the 80-lb kettlebell. Lo and behold, for each rep, I concentrated more on this mechanism, realizing that it directly mimicked anti-extension in quite a few sports. This movement was done dynamically and with heavy forces acting upon it within a movement that involved hip extension and the almighty posterior chain. I can already feel the good pain in my abdominals, which means they were highly activated.

Check this quote out by Charlie Francis: “In sprinting, abdominal strength is critical to success. If the abdominals fail in the late stages of the race, the athlete will begin to lean back in an attempt to maintain knee lift. The backward lean causes the foot strike to occur too far ahead of the center of gravity. This results in deceleration and overstress of the hamstrings, potentially leading to injury. Strength and endurance in the abdominal muscles can be developed relatively quickly with EMS.” Although we aren’t using EMS here, you can see how the braking system can be developed dynamically for an activity like sprinting using anti-extension in the kettlebell swing.

I’m going to go out on a limb and say this movement is more beneficial to athletes than the ab wheel and it can be taught and performed at a much younger training age. Most athletes and trainees can perform kettlebell swings at a relatively young training age due to the fact that once they ‘get’ hip extension and can keep the lower back in neutral, they can usually put it together to do light kettlebell swings. Next time you take your kettlebells out for a spin, be sure to put on the anti-extension brakes with the abdominals. This will give you more bang for your buck and help to injury proof you or your athletes.

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About the Author

Kyle Newell is the owner of Newell Strength, located in central New Jersey. To find out more about Kyle’s training insights, visit www.newellstrength.com.